What is the prevalence of proctitis and anusitis?

Updated: Mar 27, 2020
  • Author: David E Stein, MD; Chief Editor: John Geibel, MD, MSc, DSc, AGAF  more...
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Answer

No epidemiologic studies have been performed to determine the prevalence of proctitis in the general population. However, one can ascertain the incidence of proctitis when analyzing specific disease states. For example, patients with ulcerative colitis displayed a 31-50% frequency of proctitis upon diagnosis, depending on age at diagnosis. A study in the pediatric ulcerative colitis population demonstrated a significant increase in the occurrence of proctitis in female children as compared with males. [1] The reported frequency of chronic radiation-induced proctitis is in the range of 2-20% and is influenced by total radiation dose, mode of delivery, and dose fractionation. [2]


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